Wind power plant group health state assessment method
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A technology for health status and wind farm clusters, applied in data processing applications, instruments, calculations, etc., can solve problems such as low efficiency and inability to make full use of monitoring data, and achieve the effect of reducing workload and facilitating operation, maintenance and management.
Pending Publication Date: 2022-05-27
CHONGQING UNIV
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Problems solved by technology
However, the above methods either cannot make full use of all monitoring data, or are inefficient and cannot meet the needs of wind power operation and maintenance today.
Method used
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Embodiment 1
[0047] see figure 1 , figure 2 ,, image 3 , a method for assessing the health status of a wind farm group, comprising the following steps:
[0048] 1) Select some wind turbines from the wind farms to be evaluated as flagship wind turbines and another part as ordinary wind turbines.
[0049] The steps to select a flagship wind turbine include:
[0050] 1.1) Obtain historical data and operation logs of all wind turbines in the wind farm to be assessed.
[0051] 1.2) Arrange the wind turbines in descending order according to the historical data and the number of faulty operation states in the operation log to obtain the wind turbine sequence.
[0052] 1.3) Select the first m wind turbines in the wind turbine sequence as the flagship wind turbines.
[0053] 2) Establish a state assessment model for flagship wind turbines.
[0054] The state evaluation model of the flagship wind turbine is as follows:
[0055] y=f(x 1 ,x 2 ,…,x n ) (1)
[0056] In the formula, x 1 , x...
Embodiment 2
[0084] A method for evaluating the health status of a wind farm group, comprising the following steps:
[0085] First, select some wind turbines from the entire wind farm as flagship wind turbines, and establish the state evaluation model data respectively; secondly, divide the flagship wind turbines and their surrounding wind turbines into a group, and use the transfer learning method to transfer the model of the flagship wind turbines. to its surrounding wind turbines; then evaluate the group through the evaluation status score of each wind turbine in each group; finally, take the group as a unit to evaluate the operating state of the entire wind farm. The overall process is as figure 1 shown.
[0086] The schematic diagram of the wind farm operating state evaluation method of the present invention is as follows: figure 2 shown, the steps are as follows:
[0087] Analyze the historical data and operation logs of all wind turbines in the wind farm, select wind turbines wi...
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Abstract
The invention discloses a wind power plant group health state evaluation method. The method comprises the following steps: 1) establishing a state evaluation model of a flagship wind turbine generator; 2) obtaining a state evaluation model of the common wind turbine generator; 3) acquiring data of the flagship wind turbine generator and the common wind turbine generator, and respectively inputting the data into the state evaluation models of the flagship wind turbine generator and the common wind turbine generator to obtain operation states of the flagship wind turbine generator and the common wind turbine generator; 4) calculating to obtain a group operation state evaluation result according to the operation states of the flagship wind turbine generator and the common wind turbine generator in one group; and 5) according to all group state evaluation results, calculating to obtain an operation state evaluation result of the to-be-evaluated wind power plant. According to the method, on the basis of flagship wind turbine generators, the health state models of all the wind turbine generators are established in groups, the operation states of the single wind turbine generator and the groups can be monitored at the same time, the operation state of the whole wind power plant is better reflected, and operation, maintenance and management of the wind power plant are better facilitated.
Description
technical field [0001] The invention relates to the field of energy, in particular to a method for evaluating the health state of a wind farm group. Background technique [0002] Due to the increasing shortage of energy, driven by the adjustment of the energy structure and the "dual carbon" goal, wind energy has gained unprecedented attention and development as a clean and renewable energy. With the expansion of the scale of wind farms, the operation status evaluation method based on a single machine can no longer meet the demand. In order to achieve more efficient and scientific operation, maintenance and management of wind farms, more in-depth research is required on the evaluation methods of wind farm operation status based on farm groups and groups. [0003] Existing wind farm groups and group operating state evaluation methods usually select the operating state of a certain wind turbine in the group as the operating state of the entire group, or directly perform state ...
Claims
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Application Information
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